Delocalization of states in two component superlattices with correlated disorder

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Electron and phonon states in two different models of intentionally disordered superlattices are studied analytically as well as numerically. The localization length is calculated exactly and we found that it diverges for particular energies or frequencies, suggesting the existence of delocalized states for both electrons and phonons. Numerical calculations for the transmission coefficient support the existence of these delocalized states.
RevTeX, 12 pages, 2 PS figures added

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Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/98284

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9912175
 http://arxiv.org/abs/cond-mat/9912175
 Phys. Rev. B 61, 11432 (2000)
 doi:10.1103/PhysRevB.61.11432

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arXiv